Alberici AL66 FG ARM, Руководство оператора

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There is an exception of message structure when device responds to instruction Address poll and Address clash5. The
responds consists of only one byte representing address delayed
for time proportional to address value. For CRC checksum case format is:
[ Destination address ]
[ Nr. of data bytes ]
[ CRC 16 LSB ]
[ Header ]
[ Data 1 ]
...
[ Data n ]
[ CRC 16 MSB ]
6.2.1 Address
Address range is from address 0 to address 255. Address 0 is special case or so caled
“brodcast” address and address 1 is default host address.
Table 6.1 shows the recommended address values of different devices.
Device category Address Additional addr. Note
Coin Acceptor 2 11 - 17 Coin validator, coin selector, coinmech...
Payout 3 4 - 10 Hopper
Bill validator 40 41 - 47 Banknote reader
Card Reader 50
Display 60 Alphanumeric LC display
Keypad 70
Dongle 80 85 Safety equipment
Meter 90 Replacement for el.mec. counters
Power 100 Power supply
Printer 110 Ticket printing
RNG 120 Random Number Generator
Table 6.1 Standard address for different types of devices
Address for Alberici Hopper is factory set as 3; the user can change the default address by using the MDCES commands
Address change or Address random or by setting Hopper dip-switches. For details see cctalk42-2.pdf, Address poll.
6.2.2 Number of data byte
Number of data byte in each transfer could be from 0 to 252.
Value 0 means that there are no data bytes in the message, and total length of message packet will be 5 bytes.
Although theoretically it will be possible to send 255 bytes of data because of some limitations in small micro controllers
the number is limited to 252 (252 bytes of data, source address, header and checksum: total of 255 bytes).
6.2.3 Command headers ( Instructions )
Total amount of cctalk command header is 255 with possibility to add sub-headers using headers 100, 101, 102, 103.
Header 0
stands for
ACK
(
ack
nowledge ) replay of device to host.
Header 5 stands for NAK ( N
o
a
c
k
nowledge
) replay of device to host.
Header 6
is
BUSY
replay of device to host.
In all three cases no data bytes are transferred. Use of ACK and NAK headers are explained later on, for each specific
message transfer.
Commands are divided in to several groups according to application specifics:
- Basic general commands
- Additional general commands
- Commands for Coin acceptors
- Commands for Bill validators
- Commands for Payout mechs
- MDCES commands
ALBERICI Coin selectors AL55I66 use total of 557 instructions-headers
.